The main ingredient in pancake batter is flour. Typically, all-purpose flour is used, creating a base for the batter. The flour provides essential structure through gluten formation when mixed with the other ingredients. Alongside flour, pancake batter usually includes eggs, milk, baking powder, sugar, and a pinch of salt for flavor. Some recipes may incorporate other ingredients like vanilla extract or melted butter for additional taste and moisture. The type of flour used can affect the texture; for instance, whole wheat flour can provide a heartier pancake, while cake flour yields a lighter, fluffier outcome, tailoring the dish to personal preference.